I love travelling on trains, including those on the London tube system, and when I was regularly commuting I loved some of the things you saw and heard! Free entertainment! 8-) 8-) 8-) 
However, on a serious note I can well understand how anyone, passenger or staff, can 'snap' down there. The atmosphere can be very tense, hot, and airless, which must place incrediable pressure on those who are treading a fine line between calm sanity and pure raging insanity. I have had my moments myself with some very ignorant souls!!

The Tube is a play of all human life, day in day out, 365 days a year! Travel it long enough and you will see it all! 8-) 8-) 8-)

Maybe with Steam train up front, but its no fun on
modern ones 20 years old.
My car is:
1) Faster than a train, i don't have to pay to park the car, buy a train & tube ticket
2) more comfy
3) adjustable climate control
4) I don't have to sit next to the fat bloke you just went the gym
a) someone who just got a MaccyD's
b) someone who just smoked 20 fags
c) got their headphones so loud the whole carridge can here
Peace and quiet with the cruise control set at
85mph 70mph with the new Dan Brown audio book